Re: Doing a Full install to a USB Thumb Drive?
Doing an installtion off an usb-drive onto an usb-drive (8gb) worked well for me.
However, even (or because of) with a grub2-mkconfig blub command, i get the harddrive-installed OS' listed in the USB grub2 config too.
So all i have to do is remove the harddisk entries (once, and dont use the grub2-mkconfig every again), and be happy for the single choice to boot from off the usb-drive.
However, you may leave those entries there, as they just bring you back to the grub menu, if they dont exists, so the only one booting is the one from the usb-drive.
Hope this helps.
Fedora Manual: http://docs.fedoraproject.org
sudo st tweak repo toggle fedora-rawhide ; st iso dl-fed -respin && st iso usb